- The old code is preserved for now in VersionInterval.Legacy module
- Add normaliseVersionRange bench, comparing new and old
- We drop intersectVersionIntervals, which is complicated function for acceptable performance loss, but gained simplicity
- Remove Ord instances (can be added back, removed to make sure we don't use them)

- Resolve #6684:
- Resolve #6813: Update (and correct) source-repository-package documentation

Ben Gamari authored 4 years ago and Oleg Grenrus committed 4 years ago

The plan: A JSON file (generated with bootstrap.py --extract-plan)
containing dependency and source information is built from plan.json.
This is then used to fetch and build the bootstrapping dependencies.
Since this is only to be used for bootstrapping on new architectures, we
advise the users to only use the resulting cabal-install executable to
build a proper cabal-install.

This is partial solution to #6807, because we invoke solver.
The follow-up will be to modify Rebuild monad so,
that it can be run without rebuilding (i.e. fail if cache is cold).

Also output extension for executables.

Also calculate hashes for all locally available tarballs.

Also remove specific field for PackageId, as it is in GPD.

Note: configuredPackageProblems is a mess,
and there might be bugs now.

This should alleviate #4746 for most use cases, if the dependent files
are declared in `extra-source-files`. The downside is that `cabal`
will not be able to avoid invoking GHC in as many cases, but GHC's
`--make` should be smart enough to avoid any "actual" rebuilding that
isn't necessary.

These should have been returning an error message but instead were
causing an internal error because disambiguateTargetSelectors was
rendering syntax and rematching on it, which isn't equivalent. Due to
the way syntaxForm1File renders, it does not add a FileStatus to its
TargetStringFileStatus and so cannot be matched upon again.
The fix is to just copy over the FileStatus from the match input.
This fixes #6874